From April to June 2022, prospective attendees will again have the opportunity to learn about current trends and the latest happenings at Klingelnberg. After so many exhibitions were canceled in 2020 due to the coronavirus pandemic, Klingelnberg took the initiative of launching its own WebSeminar series.
This article was originally published 20 years ago, in Gear Technology’s first issue. It describes a method of
evaluating the smoothness, or lack of smoothness, of gear motion. This lack of smoothness of motion, known as
“transmission error,” is responsible for excitation of gear noise and problems of gear accuracy and sometimes has a relationship to gear failure.
AGMA has started to replace its 2000-A88 standard for gear accuracy with a new series of documents based largely on ISO standards. The first of the replacement AGMA standards have been published with the remainder coming in about a year. After serving as a default accuracy specification for U.S. commerce in gear products for several decades, the material in AGMA 2000-A88 is now considered outdated and in need of comprehensive revision.
It used to be that gear manufacturers wanting to perform analytical gear inspection required at least three machines to do so: The lead measuring instrument, the tooth space comparator and the involute checking instrument. In the beginning, these machines were mechanically driven. Over the years, the manufacturers of analytical gear inspection equipment have combined these functions - and a host of others.